Is there a custom to increase eating and drinking on Isru Chag (the day after each festival)?
Synopsis
There is a widespread custom to eat and drink somewhat more on Isru Chag, treating it as a minor festive day. The source in the Gemara (Sukkah) links Isru Chag observance to bringing a mizbe'ach offering. There is also discussion of whether fasting on Isru Chag is prohibited.
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